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| US4911405 | 2 Feb 1989 | 27 Mar 1990 | Hewlett-Packard Co. | Valve unit |
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| US5519369 | 10 Jan 1994 | 21 May 1996 | Siemens Aktiengellschaft | Electromagnet system and a method and device for joining the core and yoke in the case of the electromagnet system |
| US5915669 | 1 Jul 1997 | 29 Jun 1999 | Firma Carl Freudenberg | Electromagnetic valve having a valve body with a sealing bead |
| US5960776 | 3 Oct 1997 | 5 Oct 1999 | Siemens Canada Limited | Exhaust gas recirculation valve having a centered solenoid assembly and floating valve mechanism |
| US6092782 | 22 Jun 1998 | 25 Jul 2000 | SMC Kabushiki Kaisha | Opening and closing valve |
| US7669832 | 9 Sep 2005 | 2 Mar 2010 | Danfoss A/S | Solenoid actuated valve with a damping device |
| US7857282 | 17 Dec 2003 | 28 Dec 2010 | Continental Teves AG & Co., oHG | Solenoid valve |
| US7886760 | 27 Jul 2006 | 15 Feb 2011 | Schaeffler Technologies GmbH & Co. KG | Electromagnetic adjustment unit |
| US7918434 | 29 Sep 2009 | 5 Apr 2011 | Danfoss A/S | Solenoid actuated valve with a damping device |
| USRE32783 | 4 Jan 1988 | 15 Nov 1988 | G. W. Lisk Company, Inc. | Solenoid construction and method for making the same |
